Is high temp silicone profitable to sell on Amazon United States?

The niche generates $310K/yr across 18 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.4%. Flapen's verdict: Worth a look (52/100).

How competitive is the high temp silicone niche?

11 brands and 113 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in high temp silicone?

Top complaints mined from reviews: Leak-Proof, Value For Money, Adhesion/Stickiness. The return rate is 0.9%.

When does demand for high temp silicone peak?

Demand peaks in Oct; the busiest month runs 2.2× the quietest.

What does it cost to enter the high temp silicone niche?

Listings span $4.94–$36.79; the average listing price is $14.52 (sweet spot $15–$100). The average incumbent carries 2,675 reviews — the moat a new listing must climb.

high temp silicone

Worth a look

Shows low returns (0.9%), but soft demand (-9.4% this quarter) keeps it on the watch list.

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Conversion

Great10.6%

search→purchase rate — share of searches ending in a sale

Avg price

Good$14.52

avg listing price — sweet spot $15–$100

Price range

Good$4.94–$36.79

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Good$310K

$310K/yr · 202K searches

Competition

Okay57%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Review moat

Okay2,675.44

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-9.4%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, high temp silicone is a $310K/yr Amazon United States market (202K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Oct. Verdict: Worth a look — 52/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

high temp silicone market data

Units sold / yr: 20K–25K; avg 1,000–1,250/product
Revenue / yr: $290K–$363K; units × avg price
Conversion rate: 10.6%
Avg BSR: #1,106
Page quality: 0%
Prime: 100%
Sponsored: 67%
Out of stock: 0.0%
Avg brand age: 57 months
Avg seller age: 162 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

113

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

57%

Top 20: 100%

Open market

12%

Permatex33%
J-B Weld20%
RUTLAND PRODUCTS13%
Visbella9%
DAP8%
KRAKEN BOND6%
Open — no brand owns it (5 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.4% search growth over the last 90 days.

Peak months: Oct · busiest ÷ quietest = 2.2×

Open Trend

Top high temp silicone search terms

high temp silicone sealant48K/yr -13.7%7.6% conv.
high heat silicone sealant26K/yr -6.8%5.9% conv.
high temp silicone24K/yr -27.5%7.6% conv.
high temp rtv12K/yr +6.9%14.4% conv.
high temperature silicone sealant9K/yr +51.0%7.2% conv.
high temp gasket maker7K/yr +33.2%14.6% conv.
heat resistant silicone7K/yr +3.9%5.2% conv.
high heat silicone7K/yr +3.1%7.1% conv.
high temp rtv silicone6K/yr -3.1%12.9% conv.
gasket maker high temp6K/yr +25.2%11.9% conv.

All search terms

Top high temp silicone products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Permatex 81630 Ultra Red High Temperature Gasket Maker 3 oz

Permatex$7.384.7★2,166 rev

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

J-B Weld$8.204.7★5,890 rev

J-B Weld 31314 Red High Temperature RTV Silicone Gasket Maker and Sealant - 3 oz. - 2-Pack

J-B Weld$13.524.7★5,890 rev

Rutland High Heat Silicone Sealant for BBQ Grills USA-Made High Temp Gasket Maker Adhesive - UV Stable Oil Resistant Waterproof & Non-Corrosive 500F RTV Black

RUTLAND PRODUCTS$9.894.6★2,835 rev

DAP High Temp 100% RTV Silicone Sealant 10.3 Oz Red (7079808013)

DAP$11.744.5★90 rev

Newest

by launch date

Wood Stove Door Gasket Cement 850F RTV High Heat Silicone Sealant High Temperature Resistance Silicone Material Adhesive Black 100ml

WINTACK$8.0924 rev

7mo ago

Akfix Heat Fighter Black Fireplace Sealant - 2700 F (2x10.1 oz.) - Heat Resistant Fireplace Stove Caulk for Chimneys Ovens Grills Wood Stoves | Non-Flammable Quick-Drying & Paintable Cartridge

Akfix$36.5073 rev

8mo ago

Stnkeno High Temp Silicone Sealant High Temperature Adhesive Heat Resistant Glue Insulation and Waterproof Quick Drying Silicone Adhesive for Ovens Fireplace Microwave Transparent 2 Pack 3.53 OZ

Stnkeno$12.7068 rev

9mo ago

Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube

Permatex$8.133,365 rev

1y ago

J-B Weld 31314 Red High Temperature RTV Silicone Gasket Maker and Sealant - 3 oz. - 2-Pack

J-B Weld$13.525,890 rev

1y ago

What buyers say about high temp silicone

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall22%

“Good product- works as intended”

Value For Money14%

“Great Deal”

Advertised Vs Actual Product13%

“As described”

Efficiency12%

“Works well on my gasket work”

Leak-Proof7%

“Very good sealant”

Adhesion/Stickiness5%

“Good glue”

Ease Of Use5%

“Easy to use”

Heating3%

“High heat resistance”

Material Quality2%

“This is the perfect material to attach a gasket to a stove or. more likely”

Durability2%

“Saves time saves money and is durable”

What buyers complain about

Leak-Proof10%

“Leaks pretty easily even when instruction are followed”

Value For Money9%

“High price for need”

Adhesion/Stickiness7%

“Item came in loose in the box with other items the original packaging lost adhesion and fell away,”

Functionality-Overall7%

“Doesnt work”

Quality-Overall6%

“Junk product”

Heating4%

“It did not hold to the heat”

Hard Feel4%

“It was hard when I got it”

Ease Of Use3%

“it takes a little effort to squeeze out of the tube”

Stain Resistance3%

“Used outside and it stained siding”

Assembly/Installation2%

“did not cure after assembly”

Top return reasons

Color13%

Advertised Vs Actual Product11%

Value For Money11%

Functionality-Overall10%

Adhesion/Stickiness10%

Compatibility-Overall7%

Size-Overall7%

Defective Material/Parts5%

Material Quality3%

Leak-Proof3%

Common questions

Is high temp silicone profitable to sell on Amazon United States?: The niche generates $310K/yr across 18 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.4%. Flapen's verdict: Worth a look (52/100).
How competitive is the high temp silicone niche?: 11 brands and 113 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in high temp silicone?: Top complaints mined from reviews: Leak-Proof, Value For Money, Adhesion/Stickiness. The return rate is 0.9%.
When does demand for high temp silicone peak?: Demand peaks in Oct; the busiest month runs 2.2× the quietest.
What does it cost to enter the high temp silicone niche?: Listings span $4.94–$36.79; the average listing price is $14.52 (sweet spot $15–$100). The average incumbent carries 2,675 reviews — the moat a new listing must climb.